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Message-ID: <20090814224156.1640.59034.stgit@localhost.localdomain>
Date: Fri, 14 Aug 2009 15:41:57 -0700
From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, linux-scsi@...r.kernel.org,
gospo@...hat.com, Yi Zou <yi.zou@...el.com>,
Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next PATCH 03/12] net: Add NETIF_F_FCOE_MTU to indicate support
for a different MTU for FCoE
From: Yi Zou <yi.zou@...el.com>
Add NETIF_F_FCOE_MTU to indicate that the NIC can support a secondary MTU for
converged traffic of LAN and Fiber Channel over Ethernet (FCoE). The MTU for
FCoE is 2158 = 14 (FCoE header) + 24 (FC header) + 2112 (FC max payload) +
4 (FC CRC) + 4 (FCoE trailer).
Signed-off-by: Yi Zou <yi.zou@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
include/linux/netdevice.h | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 9f25ab2..9192cdf 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -701,6 +701,7 @@ struct net_device
/* the GSO_MASK reserves bits 16 through 23 */
#define NETIF_F_FCOE_CRC (1 << 24) /* FCoE CRC32 */
#define NETIF_F_SCTP_CSUM (1 << 25) /* SCTP checksum offload */
+#define NETIF_F_FCOE_MTU (1 << 26) /* Supports max FCoE MTU, 2158 bytes*/
/* Segmentation offload features */
#define NETIF_F_GSO_SHIFT 16
--
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